Door Spy using Raspberry Pi

Communicate with a visitor using your smartphone

An unexpected visitor can be a welcome surprise, but at other times you will have regretted answering that doorbell when and finding a less desirable guest on your doorstep. An intercom with a camera at the front door can be a solution, but that’s of no use to you when you are not at home. With the project presented here you can, in principle, see from anywhere in the world who rang your doorbell, have a conversation with your visitor and even remotely open the door for them, provided you have your smartphone on you.

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